LG 21FB3AB-T3 Service Manual Download

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8-3. Sub-Tint adjustment

This adjustment has to be done only if the picture has bad tint
otherwise, it can be omitted if the picture has good tint.

1) Receive LG standard pattern signal (SMPTE, 2CH)
2) Set the picture condition on “APC ON” (CLEAR) mode.
3) Press the “ADJ” key of the factory remote control three

times to enter to “SUB-TINT” adjustment mode.

4) Change the Sub-Tint data by pressing the VOL

, VOL

key until the upper and lower CYAN color becomes same
color.

9. Deflection setting data adjustment

These adjustment will be done by automatic adjustment
Equipment.
For manual adjustment, it is also possible by the following
procedure.

9-1. Adjustment Preparation

1) Deflection setting data adjustment can be done only with

remote control.

2) Press “IN-START” key on factory remote control continuously

to enter to Deflection Adjustment mode.

3) Press the CH

key to select adjustment item.

4) Press the VOL

key to change the data.

9-2. Adjustment

1) Horizontal Position Adjustment

Select SVC02(H-POS) and adjust so that the left and right
vertical line are symmetrical as possible.

2) Vertical Position Adjustment

Select SVC02(V-POS) and adjust so that the horizontal
center line coincide with geometric horizontal center of the
CPT.

3) Vertical Size Adjustment

Select SVC02(VA) and adjust so that the middle circle of the
Digital Pattern(480NC, 13CH) coincide with the effective
screen of CPT.

9-3. Adjustment (21'' Superslim, Ultra S/S

Model)

1) Vertical Position Adjustment

Select SVC02(V-POS) and adjust so that the horizontal
center line coincide with geometric horizontal center of the
CPT.

2) Vertical linearity Adjustment

Select SVC02(V-LIN) and adjust so that the size of the upper
circle is alike with the one of the lower circle at LG standard
pattern (PAL: EU05CH, NTSC: 13CH)

3) Vertical Size Adjustment

Select SVC02(VA) and adjust so that the middle circle of the
Digital Pattern(PAL B/G 5CH) has 6~7mm gaps from the
effective screen of CPT

4) Horizontal Position Adjustment

Select SVC02(H-POS) and adjust so that the left and right
vertival line are symmetrical as possible.

5) Horizontal Size Adjustment

Select SVC02(EW WIDTH) and adjust so that the outer line of

the left and right and the remotest grid will correspond to the
effective boundary surface. (The remotest grid PAL: within
0~25%; NTSC: within 2.5~3.0 column)

6) Parabora Adjustment

Select SVC02(EW PARAB) and adjust so that the vertical line

of the remotest grid at the left or right side of the screen will

be parallel to the vertical line of the center of screen. (or the
remotest grid of CPT)

7) Trapezoidal Adjustment

Select SVC02(EW TRAPE) and adjust so that the width of
the upper part of screen is alike with the one of the lower part
of the screen.

8) EW UPCOR / LOCOR Adjustment

Select SVC02(EW C UPCOR, EW LOCOR) and adjust so
that the vertical line in the four corners become straight line.

9) BOW Adjustment

Select SVC02(HP BOW) and adjust so that the vertical line in
the four corners become straight line.

10. IIC BUS SUB Adjustment Data

Table